Re: NSString drawAtPoint and vertical font alignment
On 6 Sep 2009, at 21:30, Quincey Morris wrote: On Sep 6, 2009, at 18:41, Stephen Blinkhorn wrote: OK, do you mean the origin of [self bounds] isn't always (0, 0)? That could explain a few things.. The origin of the bounds coordinate system is always (0, 0) by definition, but what I meant to say was that the bottom left corner of the view (i.e. [self bounds].origin) doesn't have to be (0, 0) in bounds coordinates, though it usually is. Right, here's something I don't understand and I think it is still relevant: I make a custom view (really a NSControl subclass) and I use a place holder in IB to position it on screen. I also set it's size to be say 50 wide by 22 high. If I draw the view by simply filling the rect returned by [self bounds] then it looks fine and in the same place as the IB placeholder. However, the view responds to mouse events outside of its visual frame at the top edge and only registers mouse events inside the bottom edge once the cursor is about 3-4 pixels inside the frame. Whilst only small the inaccuracy feels very wrong after a while. I don't understand is the mouse event part. I am filling the bounds rectangle via NSRectFill but mouse events visibly outside the filled rectangle are apparently happening inside the bounds rectangle. I use this to get the event position: NSPoint p = [self convertPoint:[theEvent locationInWindow] fromView:nil]; I've read a lot of the Apple docs about frames, bounds and co-ordinate spaces but I can't figure this out. Maye it is time for some sleep. Thanks, Stephen ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Turn on zombies in user environment?
On 6 sep 2009, at 22.48, Kyle Sluder wrote: You'll need to make sure you have the unstripped release binary (not a debug version) of the same app version for this backtrace to be useful. If you don't, you will have to send the user a new binary. For tracking down this type of issue, I would expect that having access to the sources for a reasonably similar version of the app would be sufficient - And if you're the developer, that shouldn't be difficult to get at. Also the NSZombie will prevent a crash, so the user will need to set the appropriate breakpoint before running the program. NSZombie doesn't prevent crashes (since Leopard). If you instruct the user to launch the app like this: $ NSZombieEnabled=YES /path/to/Foo.app/Contents/MacOS/Foo ...you will see something like this in the terminal where you launched the app when you hit a zombie: *** -[Bar baz]: message sent to deallocated instance 0x1004a8c30 Trace/BPT trap ...where Bar is the class of the object being messaged, and baz is the message being sent. If the user isn't running the app under the debugger, CrashReporter will pop up, and the user can copy out the backtrace and pass it along to the developer. If you need information about where the object was allocated, you can get to that IF the user installs the developer tools (to get access to gdb and malloc_history). For this scenario I'd suggest launching your app from gdb: $ gdb (gdb) file /path/to/Foo.app/Contents/MacOS/Foo (gdb) set environment NSZombieEnabled=YES (gdb) set environment MallocStackLoggingNoCompact=1 (gdb) run When you hit the zombie, type: (gdb) shell malloc_history PID ADDRESS ...replacing PID with the pid of your app, and ADDRESS with the address of the zombie. Voila: malloc_history will spit out the backtrace to the allocation event for the zombie. Armed with this info, you should be well on your way to tracking down the problem. j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSString drawAtPoint and vertical font alignment
On Sep 6, 2009, at 23:38, Stephen Blinkhorn wrote: I make a custom view (really a NSControl subclass) and I use a place holder in IB to position it on screen. I also set it's size to be say 50 wide by 22 high. If I draw the view by simply filling the rect returned by [self bounds] then it looks fine and in the same place as the IB placeholder. However, the view responds to mouse events outside of its visual frame at the top edge and only registers mouse events inside the bottom edge once the cursor is about 3-4 pixels inside the frame. Whilst only small the inaccuracy feels very wrong after a while. I don't understand is the mouse event part. I am filling the bounds rectangle via NSRectFill but mouse events visibly outside the filled rectangle are apparently happening inside the bounds rectangle. I use this to get the event position: NSPoint p = [self convertPoint:[theEvent locationInWindow] fromView:nil]; There's not enough information here to suggest an answer. Is there a placeholder view that you *replace* with a NSControl subclass? Is this a subclass of NSControl directly, or of a specific control (e.g. NSButton)? You'll probably need to post some code to get an answer, but it's not even clear which code. I'd suggest you start by putting a breakpoint on the line after the line you showed above, and then start poking around the view hierarchy until you find out what numbers aren't what you expect them to be. It could be a coordinate system snafu, or it could be something more intimately related to control behavior. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
How to play the movie(.mov) looped using QTMovie ?
Hi, everyone In my application, I have implemented to play the movie(.mov). Now, I want to control the movies looped or not when they play using menu items. Using the menu items, user can select to play single movie looped or all movie looped one by one. I looked up the QTMovie class. But, I can not find the method for my purpose. Could anyone direct any method or function about it ? Any clue will help for me. Thanks a lot for any help. James___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Turn on zombies in user environment?
Great, thank-you all very much! I'm afraid this user is finding even point-and-click tough going, but I'll try as we have very little else to go on right now. Installing the dev tools is likely to be out for the moment. However, in following your advice I'm not getting the app launched - I just get $: Command not found.. I just use the default shell in Terminal and I don't use it much myself so I'm not sure what the problem is. I'm on Snow but the user is on 10.5.7 right now. --Graham On 07/09/2009, at 5:04 PM, Joar Wingfors wrote: NSZombie doesn't prevent crashes (since Leopard). If you instruct the user to launch the app like this: $ NSZombieEnabled=YES /path/to/Foo.app/Contents/MacOS/Foo ...you will see something like this in the terminal where you launched the app when you hit a zombie: *** -[Bar baz]: message sent to deallocated instance 0x1004a8c30 Trace/BPT trap ...where Bar is the class of the object being messaged, and baz is the message being sent. If the user isn't running the app under the debugger, CrashReporter will pop up, and the user can copy out the backtrace and pass it along to the developer. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Turn on zombies in user environment?
On 7 sep 2009, at 00.34, Graham Cox wrote: However, in following your advice I'm not getting the app launched - I just get $: Command not found.. I just use the default shell in Terminal and I don't use it much myself so I'm not sure what the problem is. I'm on Snow but the user is on 10.5.7 right now. You're not supposed to type either the $, or the (gdb). They're just there to indicate that you're supposed to type this at a prompt, and what type of prompt you're at. j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Finding nearby places
Hi, I get the latitude and longitude from the iPhone using coreLocation framework. Now I need to show the nearby hotels, restaurants etc. Which api I need to use for this? I'm using iPhone OS 2.2 Thanks in advance Mahaboob ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Code Signing
On Sep 6, 2009, at 6:22 PM, Chris Suter wrote: It's important to remember that code signatures are not really there to prevent malware from running, or make it harder for hackers (since it's trivial to remove a code signature or replace them other valid signatures). Well, you can always check that the signature is yours and not someone else's at app startup. Charles P.S. I know it's trivial to replace the signature with another signature, but to remove a signature? Are Apple's APIs really able to do that, or are you just talking about hacking the Mach-O file directly? I didn't see anything like that in the APIs. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Code Signing
Many thanks for this info. I was looking for a way to observe the code having been hacked - and if it has been, for the app not to run. What is the kill flag and how do I set it ? Could it be reset by someone ? Best regards Peter On 7 Sep 2009, at 00:22, Chris Suter wrote: Hi Peter, On Sun, Sep 6, 2009 at 9:00 PM, Peter Hudsonpeter.hud...@mac.com wrote: I notice that when I sign code ( the whole app ) I land up with 2 additional items in my /Contents directory in the app bundle. These items are a folder called _CodeSignature and an alias called CodeResources. If I delete these two items, the code still identifies itself as signed ( when I attempt to run codesign on it again ). Also, the app still runs. I was wondering if these files are meant to remain or if removing them is not an issue ? Within an application bundle there are signatures for all the files within the bundle and then there's a signature for the binary itself. The signature for the binary is stored within executable and you can see it if you use the otool -l command (look for the LC_CODE_SIGNATURE). The signature for all the resources is stored within the file you've discovered. As far as I know, except for static validation (using the codesign tool), the signature for the resources isn't used by much (or at least it wasn't for Leopard). The signature for the binary is used by the system for various things. For example you can set the kill flag to have your application terminated if there's an invalid signature, and it's used for Keychain access (so that if you upgrade an application, you won't be prompted again for password access provided the signature remains valid). It's important to remember that code signatures are not really there to prevent malware from running, or make it harder for hackers (since it's trivial to remove a code signature or replace them other valid signatures). At any rate, you shouldn't be deleting those files. If you remove them, the signature will be invalidated. By the way, the best list for code signing questions is the apple- cdsa list. Kind regards, Chris ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: document-based application
Hi, did you look at cocoadev/forum? If you want actualy the same, there is a disscusion about this. HTH Op 7 sep 2009, om 07:24 heeft Oftenwrong Soong het volgende geschreven: Hi All, In my doc-based app, I need to initially display a startup window instead of a new empty document. Its function would be somewhat akin to that of the Template Chooser that comes up when you launch Pages. I've scoured the texts about the document architecture but cannot find pointers on how to do this. So far this is the best idea I could come up with: Implement NSApplication delegate applicationShouldOpenUntitledFile:, returning NO, and implement applicationDidFinishLaunching:, in which the startup window is launched. Then I manually call makeUntitledDocumentOfType:error. It seems an ugly hack and I have a feeling it won't work 100% right. Is there a better way to implement an initial window in a doc-based app? Thanks, Soong ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/appledev%40xs4all.nl This email sent to apple...@xs4all.nl ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Crash on SL in com.apple.DesktopServices after using NSOpenPanel
Hello,
I have a crash that I can't reproduce on my machines but a user
runs into it every time he uses an open panel in the app on Snow
Leopard.
Below is the stack trace and the code that handles the panel. Nothing
obvious for me and it used to work and works fine under Leopard and
Snow Leopard for me and other users. The base SDK and deployment
target both are 10.5 compiled on Snow Leopard.
I've read the release notes and nothing relevant came up there
(besides lots of deprecated stuff when using 10.6+ SDKs).
According to the user, he opens the panel, selects a file, OK's the
sheet, the app does what it does and then shortly after that it crashes.
Stack and code below, I'd be grateful for hints in that matter.
Thanks!
Regards
Markus
Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x9696b917 objc_msgSend + 23
1 com.apple.DesktopServices 0x90f21a79 TFSInfo::~TFSInfo() + 29
2 com.apple.DesktopServices 0x90f21f25
TFSInfo::RemovePtrReference() + 35
3 com.apple.DesktopServices 0x90f3a544 TNode::IsUnresolved()
const + 48
4 com.apple.DesktopServices 0x90f2efa0 TNode::SetAliasTarget
(TNodePtr const, bool) + 230
5 com.apple.DesktopServices 0x90f7538d
TNode::RecursivelyRemoveAllChildren(bool) const + 175
6 com.apple.DesktopServices 0x90f75986 TNode::Finalize
(TNodePtr*) + 56
7 com.apple.DesktopServices 0x90f75bb0 TNode::Finalize() + 286
8 com.apple.DesktopServices 0x90f889fa NodeContextClose + 542
9 com.apple.AppKit 0x971f1527 _NSSavePanelContextEnd +
60
10 com.apple.Foundation 0x942fbb65 __NSFireDelayedPerform +
537
11 com.apple.CoreFoundation0x911a9eee __CFRunLoopRun + 6846
12 com.apple.CoreFoundation0x911a7d34 CFRunLoopRunSpecific + 452
13 com.apple.CoreFoundation0x911a7b61 CFRunLoopRunInMode + 97
14 com.apple.HIToolbox 0x9622afec
RunCurrentEventLoopInMode + 392
15 com.apple.HIToolbox 0x9622ada3 ReceiveNextEventCommon +
354
16 com.apple.HIToolbox 0x9622ac28
BlockUntilNextEventMatchingListInMode + 81
17 com.apple.AppKit0x96aaeb99 _DPSNextEvent + 847
18 com.apple.AppKit 0x96aae40e -[NSApplication
nextEventMatchingMask:untilDate:inMode:dequeue:] + 156
19 com.apple.AppKit0x96a705fb -[NSApplication run] + 821
20 com.apple.AppKit0x96a68695 NSApplicationMain + 574
21 com.toolsfactory.myapp 0x26ee 0x1000 + 5870
- (void)importDataPanelDidEnd:(NSOpenPanel *)panel returnCode:(int)
returnCode contextInfo:(void *)contextInfo
{
[panel orderOut:self];
if (returnCode != NSOKButton) return;
if ([[panel filenames] count] 0) {
NSString *file = [[panel filenames] objectAtIndex:0];
NSString *dir = [file stringByDeletingLastPathComponent];
[[NSUserDefaults standardUserDefaults] setObject:dir
forKey:UDEF_KEY_LAST_IMPORT_DIRECTORY];
[self importFromFiles:[panel filenames]];
}
}
- (void)importDataFromFile:(id)sender
{
NSArray *filetypes = [NSArray arrayWithObjects:@tcx, @gpx,
@xml, @log, @fitlog, @sdf, nil];
NSOpenPanel *op = [NSOpenPanel openPanel];
[op setAllowsMultipleSelection:YES];
[op setAllowedFileTypes:filetypes];
[op setTitle:STR_IMPORT_SELECT_TITLE];
[op setMessage:STR_IMPORT_SELECT_FILES];
[op setPrompt:STR_IMPORT_IMPORT];
NSString *initialDir = [[NSUserDefaults standardUserDefaults]
stringForKey:UDEF_KEY_LAST_IMPORT_DIRECTORY];
if (!initialDir) {
initialDir = NSHomeDirectory();
}
[op beginSheetForDirectory:initialDir file:nil types:filetypes
modalForWindow:[controller window] modalDelegate:self
didEndSelector:@selector
(importDataPanelDidEnd:returnCode:contextInfo:) contextInfo:nil];
}
--
__
Markus Spoettl
smime.p7s
Description: S/MIME cryptographic signature
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Problem with LSSharedFileListInsertItemURL() usage. (API in LaunchServices/LSSharedFileList.h)
Hello all,
I am trying to do the following- when my app is used for the first
time - *'open
at login'* is selected by default. For that i am calling the code below for
the app's first run.
The code is working fine and my app is getting added in the login item list,
But on ctrl+click on my apps dock icon, its failing to show 'open at login'
as selected (tick mark)
What i am missing here??
Please guide.
*LSSharedFileListRef loginListRef = LSSharedFileListCreate(NULL,
kLSSharedFileListSessionLoginItems, NULL);
if (loginListRef) {
// Insert the item at the bottom of Login Items list.
LSSharedFileListItemRef loginItemRef =
LSSharedFileListInsertItemURL(loginListRef,
kLSSharedFileListItemLast,
NULL,
NULL,
(CFURLRef)url, // url is my app location
NULL,
NULL);
if (loginItemRef) {
CFRelease(loginItemRef);
}
CFRelease(loginListRef);
}*
Advance Thanks
-Parimal Das
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Re: Crash on SL in com.apple.DesktopServices after using NSOpenPanel
Looks like an Apple bug.
http://kb2.adobe.com/cps/506/cpsid_50654.html
Thomas
On Sep 7, 2009, at 12:37 PM, Markus Spoettl wrote:
Hello,
I have a crash that I can't reproduce on my machines but a user
runs into it every time he uses an open panel in the app on Snow
Leopard.
Below is the stack trace and the code that handles the panel.
Nothing obvious for me and it used to work and works fine under
Leopard and Snow Leopard for me and other users. The base SDK and
deployment target both are 10.5 compiled on Snow Leopard.
I've read the release notes and nothing relevant came up there
(besides lots of deprecated stuff when using 10.6+ SDKs).
According to the user, he opens the panel, selects a file, OK's the
sheet, the app does what it does and then shortly after that it
crashes.
Stack and code below, I'd be grateful for hints in that matter.
Thanks!
Regards
Markus
Thread 0 Crashed: Dispatch queue: com.apple.main-thread
0 libobjc.A.dylib 0x9696b917 objc_msgSend + 23
1 com.apple.DesktopServices 0x90f21a79 TFSInfo::~TFSInfo() + 29
2 com.apple.DesktopServices 0x90f21f25
TFSInfo::RemovePtrReference() + 35
3 com.apple.DesktopServices 0x90f3a544 TNode::IsUnresolved()
const + 48
4 com.apple.DesktopServices 0x90f2efa0
TNode::SetAliasTarget(TNodePtr const, bool) + 230
5 com.apple.DesktopServices 0x90f7538d
TNode::RecursivelyRemoveAllChildren(bool) const + 175
6 com.apple.DesktopServices 0x90f75986
TNode::Finalize(TNodePtr*) + 56
7 com.apple.DesktopServices 0x90f75bb0 TNode::Finalize() + 286
8 com.apple.DesktopServices 0x90f889fa NodeContextClose + 542
9 com.apple.AppKit 0x971f1527 _NSSavePanelContextEnd
+ 60
10 com.apple.Foundation 0x942fbb65 __NSFireDelayedPerform
+ 537
11 com.apple.CoreFoundation0x911a9eee __CFRunLoopRun + 6846
12 com.apple.CoreFoundation 0x911a7d34 CFRunLoopRunSpecific +
452
13 com.apple.CoreFoundation0x911a7b61 CFRunLoopRunInMode + 97
14 com.apple.HIToolbox 0x9622afec
RunCurrentEventLoopInMode + 392
15 com.apple.HIToolbox 0x9622ada3 ReceiveNextEventCommon
+ 354
16 com.apple.HIToolbox 0x9622ac28
BlockUntilNextEventMatchingListInMode + 81
17 com.apple.AppKit0x96aaeb99 _DPSNextEvent + 847
18 com.apple.AppKit 0x96aae40e -[NSApplication
nextEventMatchingMask:untilDate:inMode:dequeue:] + 156
19 com.apple.AppKit 0x96a705fb -[NSApplication run] +
821
20 com.apple.AppKit0x96a68695 NSApplicationMain + 574
21 com.toolsfactory.myapp 0x26ee 0x1000 + 5870
- (void)importDataPanelDidEnd:(NSOpenPanel *)panel returnCode:
(int)returnCode contextInfo:(void *)contextInfo
{
[panel orderOut:self];
if (returnCode != NSOKButton) return;
if ([[panel filenames] count] 0) {
NSString *file = [[panel filenames] objectAtIndex:0];
NSString *dir = [file stringByDeletingLastPathComponent];
[[NSUserDefaults standardUserDefaults] setObject:dir
forKey:UDEF_KEY_LAST_IMPORT_DIRECTORY];
[self importFromFiles:[panel filenames]];
}
}
- (void)importDataFromFile:(id)sender
{
NSArray *filetypes = [NSArray arrayWithObjects:@tcx, @gpx,
@xml, @log, @fitlog, @sdf, nil];
NSOpenPanel *op = [NSOpenPanel openPanel];
[op setAllowsMultipleSelection:YES];
[op setAllowedFileTypes:filetypes];
[op setTitle:STR_IMPORT_SELECT_TITLE];
[op setMessage:STR_IMPORT_SELECT_FILES];
[op setPrompt:STR_IMPORT_IMPORT];
NSString *initialDir = [[NSUserDefaults standardUserDefaults]
stringForKey:UDEF_KEY_LAST_IMPORT_DIRECTORY];
if (!initialDir) {
initialDir = NSHomeDirectory();
}
[op beginSheetForDirectory:initialDir file:nil types:filetypes
modalForWindow:[controller window] modalDelegate:self
didEndSelector
:@selector(importDataPanelDidEnd:returnCode:contextInfo:)
contextInfo:nil];
}
--
__
Markus Spoettl
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Sending the value message to an object typed id
I was explaining the difference between typing objects with id instead
of UISlider * (in this case) to a friend and came across this weird
behaviour.
Consider the folowing method that is called when chaing the value of a
UISlider:
===
- (IBAction)changeValue:(id)sender
{
[textLabel setText:[NSString stringWithFormat:@%f, [sender value]]];
}
===
[sender value] in this case returns the actual slider object...
If we cast sender to UISlider everything works as expected.
My first thought was that this behaviour may have to do with
UISlider's -value method returning a float instead of an object.
However if I use [sender maximumValue] which also retuns a float it
works..
So what's the deal with the method name value and ObjC runtime?
Paulo F. Andrade
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Weird malloc error when dealing with lots of NSImage objects
Hi all,
I keep on getting weird malloc errors with the following code, first from
ATSFontManager, and then:
FooProgram(1343,0xa01e1720) malloc: *** mmap(size=30855168) failed (error
code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
2009-09-07 19:37:17.606 KindPDF[1343:10b] *** NSCopyMemoryPages(0xfc18a000,
0x0, 30851072) failed
It seems to me that somewhere I have a memory leak, but I just cannot figure
out where.
What the function does is to take in a PDFPage and crop according to some
cropRect and scale down to
render the page on some surface with arbitrary geometry.
The program fails after processed for around 400 images with a device size
of 786x1144 and RENDER_SCALE_FACTOR
of 2. MAX_POINTS of 300 (This constant is to make the cropRect units
percetages)
Hope someone could help me this program has been making me mad for
around a week... Thanks.
-(NSImage *) generatePage:(PDFPage *) page withCropRect:(CropRect) cropRect
onDevice:(NSSize) deviceSize
{
NSRect originalPageMediaBox = [page boundsForBox:kPDFDisplayBoxMediaBox];
NSRect croppedPageMediaBox = NSMakeRect((float)originalPageMediaBox.size.
width * (float)cropRect.left / MAX_POINTS,
(float)originalPageMediaBox.size.height * (float)cropRect.bottom /
MAX_POINTS,
originalPageMediaBox.size.width * (1.0 - (float)cropRect.horiCropped /
MAX_POINTS),
originalPageMediaBox.size.height * (1.0 - (float)cropRect.vertCropped /
MAX_POINTS));
float croppedPDFAspectRatio = croppedPageMediaBox.size.height /
croppedPageMediaBox.size.width;
float deviceAspectRatio = deviceSize.height / deviceSize.width;
float width, height;
if (croppedPDFAspectRatio deviceAspectRatio)
{
height = deviceSize.height;
width = height / croppedPDFAspectRatio;
} else
{
width = deviceSize.width;
height = width * croppedPDFAspectRatio;
}
width = width * RENDER_SCALE_FACTOR;
height = height * RENDER_SCALE_FACTOR;
//
// Crop the PDF Page
//
NSPDFImageRep *pdfImg = [NSPDFImageRep imageRepWithData:[page
dataRepresentation]];
NSSize pageSize = NSMakeSize(width / (1.0 - cropRect.horiCropped /
MAX_POINTS), height / 1.0 - cropRect.vertCropped / MAX_POINTS);
NSImage *pdfPage = [[NSImage alloc] initWithSize:pageSize];
[pdfPage lockFocus];
[pdfImg drawInRect:[pdfPage rect]];
[pdfPage unlockFocus];
NSBitmapImageRep *pdfPageRep = [NSBitmapImageRep imageRepWithData:[pdfPage
TIFFRepresentation]];
NSImage *rasterizedPage = [[NSImage alloc] initWithSize:NSMakeSize(width,
height)];
[rasterizedPage lockFocus];
[[NSColor whiteColor] setFill];
NSRectFill(NSMakeRect(0, 0, width, height));
[pdfPageRep drawAtPoint:NSMakePoint(-1 * width * cropRect.left / MAX_POINTS,
-1 * height * cropRect.bottom / MAX_POINTS)];
[rasterizedPage unlockFocus];
[pdfPage release];
//
// Scale down to original size
//
NSImage *surface = [[[NSImage alloc] initWithSize:NSMakeSize(width /
RENDER_SCALE_FACTOR, height / RENDER_SCALE_FACTOR)] autorelease];
[surface lockFocus];
[rasterizedPage drawInRect:[surface rect] fromRect:[rasterizedPage rect]
operation:NSCompositeCopy fraction:1];
[surface unlockFocus];
[rasterizedPage release];
return surface;
}
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Re: Turn on zombies in user environment?
On 07/09/2009, at 5:37 PM, Joar Wingfors wrote: You're not supposed to type either the $, or the (gdb). They're just there to indicate that you're supposed to type this at a prompt, and what type of prompt you're at. Which was what I thought, but doing that produces much the same result: NSZombieEnabled=YES: Command not found. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sending the value message to an object typed id
On 07/09/2009, at 9:36 PM, Paulo F. Andrade wrote: So what's the deal with the method name value and ObjC runtime? As an iPhone question this may be incorrect, but normally you use - floatValue to get a, umm, float value. I suspect what's occurring is that -value is defined in multiple classes having different return types: maybe float in one case and id in another, say. The compiler can't disambiguate a method based on return type alone so compiles based solely on the first one it encounters, which to all intents and purposes may as well be random. It's a dirty little secret of Obj-C (or at least the current compilers) and is a very real source of bugs (and sometimes quite dangerous ones at that). To avoid it, where possible do not use type id and always use explicit types if you can. If you know your sender is a UISlider*, then cast to that when messaging it with method names that can be ambiguous. Short and vague method names like -value are fairly likely to be ambiguous. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Turn on zombies in user environment?
Le 7 sept. 2009 à 14:03, Graham Cox a écrit : On 07/09/2009, at 5:37 PM, Joar Wingfors wrote: You're not supposed to type either the $, or the (gdb). They're just there to indicate that you're supposed to type this at a prompt, and what type of prompt you're at. Which was what I thought, but doing that produces much the same result: NSZombieEnabled=YES: Command not found. --Graham env NSZombieEnabled=YES Your/Executable -- Jean-Daniel ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Crash on SL in com.apple.DesktopServices after using NSOpenPanel
On Sep 7, 2009, at 1:31 PM, Thomas Clement wrote: Looks like an Apple bug. http://kb2.adobe.com/cps/506/cpsid_50654.html That doesn't seem to be the problem with that user's machine as the files are local. Thanks for the pointer, though! Regards Markus -- __ Markus Spoettl smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Crash on SL in com.apple.DesktopServices after using NSOpenPanel
On Sep 7, 2009, at 2:25 PM, Markus Spoettl wrote: On Sep 7, 2009, at 1:31 PM, Thomas Clement wrote: Looks like an Apple bug. http://kb2.adobe.com/cps/506/cpsid_50654.html That doesn't seem to be the problem with that user's machine as the files are local. The document states especially wia the SMB protocol, not only via the SMB protocol. Thomas ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Weird malloc error when dealing with lots of NSImage objects
where's this getting called? Is it getting called from a timer or
button press or other event, or do you do a whole load of these in a
loop?
It seems to me that everything you have init'ed you have released
again, however surface is autoreleased, so it won't actually get
dealloced until the innermost autoreleasepool is drained. If you're
calling this function in a loop then you're not getting to that pool
drain and you're piling up memory.
But you don't need to guess, fire up instruments, run with object
allocations, that will very quickly show you where your memory is
going. If you have some unbalanced release I didn't see here, you'll
see it there, if you're piling up on an autorelease pool you'll see
that too as the stack trace for the memory (if you enable the right
options) will show you the last thing which happened is autorelease.
On 07-Sep-2009, at 7:45 PM, DairyKnight wrote:
Hi all,
I keep on getting weird malloc errors with the following code, first
from
ATSFontManager, and then:
FooProgram(1343,0xa01e1720) malloc: *** mmap(size=30855168) failed
(error
code=12)
*** error: can't allocate region
*** set a breakpoint in malloc_error_break to debug
2009-09-07 19:37:17.606 KindPDF[1343:10b] *** NSCopyMemoryPages
(0xfc18a000,
0x0, 30851072) failed
It seems to me that somewhere I have a memory leak, but I just
cannot figure
out where.
What the function does is to take in a PDFPage and crop according to
some
cropRect and scale down to
render the page on some surface with arbitrary geometry.
The program fails after processed for around 400 images with a
device size
of 786x1144 and RENDER_SCALE_FACTOR
of 2. MAX_POINTS of 300 (This constant is to make the cropRect units
percetages)
Hope someone could help me this program has been making me mad for
around a week... Thanks.
-(NSImage *) generatePage:(PDFPage *) page withCropRect:(CropRect)
cropRect
onDevice:(NSSize) deviceSize
{
NSRect originalPageMediaBox = [page
boundsForBox:kPDFDisplayBoxMediaBox];
NSRect croppedPageMediaBox = NSMakeRect((float)
originalPageMediaBox.size.
width * (float)cropRect.left / MAX_POINTS,
(float)originalPageMediaBox.size.height * (float)cropRect.bottom /
MAX_POINTS,
originalPageMediaBox.size.width * (1.0 - (float)cropRect.horiCropped /
MAX_POINTS),
originalPageMediaBox.size.height * (1.0 - (float)
cropRect.vertCropped /
MAX_POINTS));
float croppedPDFAspectRatio = croppedPageMediaBox.size.height /
croppedPageMediaBox.size.width;
float deviceAspectRatio = deviceSize.height / deviceSize.width;
float width, height;
if (croppedPDFAspectRatio deviceAspectRatio)
{
height = deviceSize.height;
width = height / croppedPDFAspectRatio;
} else
{
width = deviceSize.width;
height = width * croppedPDFAspectRatio;
}
width = width * RENDER_SCALE_FACTOR;
height = height * RENDER_SCALE_FACTOR;
//
// Crop the PDF Page
//
NSPDFImageRep *pdfImg = [NSPDFImageRep imageRepWithData:[page
dataRepresentation]];
NSSize pageSize = NSMakeSize(width / (1.0 - cropRect.horiCropped /
MAX_POINTS), height / 1.0 - cropRect.vertCropped / MAX_POINTS);
NSImage *pdfPage = [[NSImage alloc] initWithSize:pageSize];
[pdfPage lockFocus];
[pdfImg drawInRect:[pdfPage rect]];
[pdfPage unlockFocus];
NSBitmapImageRep *pdfPageRep = [NSBitmapImageRep imageRepWithData:
[pdfPage
TIFFRepresentation]];
NSImage *rasterizedPage = [[NSImage alloc] initWithSize:NSMakeSize
(width,
height)];
[rasterizedPage lockFocus];
[[NSColor whiteColor] setFill];
NSRectFill(NSMakeRect(0, 0, width, height));
[pdfPageRep drawAtPoint:NSMakePoint(-1 * width * cropRect.left /
MAX_POINTS,
-1 * height * cropRect.bottom / MAX_POINTS)];
[rasterizedPage unlockFocus];
[pdfPage release];
//
// Scale down to original size
//
NSImage *surface = [[[NSImage alloc] initWithSize:NSMakeSize(width /
RENDER_SCALE_FACTOR, height / RENDER_SCALE_FACTOR)] autorelease];
[surface lockFocus];
[rasterizedPage drawInRect:[surface rect] fromRect:[rasterizedPage
rect]
operation:NSCompositeCopy fraction:1];
[surface unlockFocus];
[rasterizedPage release];
return surface;
}
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Re: document-based application
That is the way I do it, I don't see why it wouldn't work 100% of the time, it would be nice if Apple had a way to insert a template chooser, but I would describe the way you have done it as 'an ugly hack'. On 07/09/2009, at 3:24 PM, Oftenwrong Soong wrote: Hi All, In my doc-based app, I need to initially display a startup window instead of a new empty document. Its function would be somewhat akin to that of the Template Chooser that comes up when you launch Pages. I've scoured the texts about the document architecture but cannot find pointers on how to do this. So far this is the best idea I could come up with: Implement NSApplication delegate applicationShouldOpenUntitledFile:, returning NO, and implement applicationDidFinishLaunching:, in which the startup window is launched. Then I manually call makeUntitledDocumentOfType:error. It seems an ugly hack and I have a feeling it won't work 100% right. Is there a better way to implement an initial window in a doc-based app? Thanks, Soong ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/nathan_day%40mac.com This email sent to nathan_...@mac.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Turn on zombies in user environment?
On 07/09/2009, at 10:22 PM, Jean-Daniel Dupas wrote: env Thankyou - the missing piece. It's good. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Code Signing
Peter Hudson wrote: I was looking for a way to observe the code having been hacked - and if it has been, for the app not to run. What is the kill flag and how do I set it ? Could it be reset by someone ? Take a look at the Code Signing Services Reference: http://developer.apple.com/mac/library/documentation/Security/Reference/CodeSigningRef/Reference/reference.html Assuming that you want an application to check its own validity, the basic idea is that you want to get a SecCodeRef for the running app using SecCodeCopySelf, and then validate it against some requirement using SecCodeCheckValidity. If you specify no requirement, it validates only the application's designated requirement. Using SecCodeCheckValidity, you're validating the application's dynamic state -- i.e. confirming that it has not been modified while running. You can also check the static state using SecStaticCodeCheckValidity. There was a pretty good presentation on code signing at WWDC'09. If you have access to the WWDC videos, you might want to check it out. smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Change the text color in an NSTableView based on the data in the row
Thanks Graham, I did the following and it worked fine: NSNumber *isClosed = [[[activityController arrangedObjects] objectAtIndex: row] valueForKey: @isClosed]; Cheers! On 7-Sep-09, at 12:34 AM, Graham Cox wrote: On 07/09/2009, at 9:40 AM, Bryan Zarnett wrote: I would like to set the text color of the cell in an NSTableView based on a particular set of data in the table of in the associated array controller. I currently have the basic code for the coloring changing working right now in willDisplayCell. What I am not sure about is how to (1) retrieve a column for the same row to check the data for a cell, or (2) check the associate array controller being used to populate the cell data to see if a different field has related data. For example, while viewing the Name column in willDisplayCell, I also want to see the other data that it is associated to -- perhaps not all the data is displayed in the NSTableView. Thoughts? Hi Bryan, The row index usually represents the array index of the item in the data model, and the column is a property for that item. Therefore the rowIndex is all you need to retrieve *all* of the data for an object, whether the table displays it or not. Both the column and the row index are passed to the delegate method you mention. You ask: how to (1) retrieve a column for the same row but that doesn't make any sense - the column being drawn is passed to you, and there isn't a column for the same row. Columns and rows are, quite literally, orthogonal. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Finding nearby places
On Sep 7, 2009, at 5:48 AM, Mahaboob wrote: I get the latitude and longitude from the iPhone using coreLocation framework. Now I need to show the nearby hotels, restaurants etc. Which api I need to use for this? I'm using iPhone OS 2.2 This has to be the fourth or fifth time you've asked this exact same question and it's becoming annoying. Posting the same question again and again is a gross violation of etiquette on any list and is only going to cause people to ignore all messages from you. As to your question, I believe someone (maybe me?) answered this the first time you asked it: You're going to have to interface with a web service that provides this information based on geolocation - there is no dedicated framework to do this (because there still has to be a service providing the data). Now, you have your answer (again). Search the documentation and the web for tutorials on how to use Cococa to interface with a web service (there are dozens). It's up to you (not this list) to find a service to provide the data for you. If you have *specific* questions about *specific* parts of the Cocoa framework, ask them, but please ... STOP ASKING THE SAME QUESTION AGAIN AND AGAIN. -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: document-based application
On Sep 7, 2009, at 1:24 AM, Oftenwrong Soong wrote: In my doc-based app, I need to initially display a startup window instead of a new empty document. Its function would be somewhat akin to that of the Template Chooser that comes up when you launch Pages. This might help (it's a little hard to find via Google unless you know it exists): http://www.stepwise.com/Articles/2006/eb1/index.html -- I.S. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children.
How would I do this? The Outline View is being used with Core Data. Cheers, Josh. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sending the value message to an object typed id
On 2009/09/07, at 13:11, Graham Cox wrote: On 07/09/2009, at 9:36 PM, Paulo F. Andrade wrote: So what's the deal with the method name value and ObjC runtime? As an iPhone question this may be incorrect, but normally you use - floatValue to get a, umm, float value. UISlider does not have a - floatValue method. I suspect what's occurring is that -value is defined in multiple classes having different return types: maybe float in one case and id in another, say. The compiler can't disambiguate a method based on return type alone so compiles based solely on the first one it encounters, which to all intents and purposes may as well be random. It's a dirty little secret of Obj-C (or at least the current compilers) and is a very real source of bugs (and sometimes quite dangerous ones at that). I don't get this. Won't the call [sender value] be dealt by objc_msgSend? Will it not traverse the isa pointer to get the method table and find the method named value and call that? At least from the UISlider class hierarchy there seems to be only one method named value, no ambiguity there. To avoid it, where possible do not use type id and always use explicit types if you can. If you know your sender is a UISlider*, then cast to that when messaging it with method names that can be ambiguous. Short and vague method names like -value are fairly likely to be ambiguous. I know this. I just want to fully understand why this is happening for this particular name value and not for maximumValue. --Graham Paulo F. Andrade ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sending the value message to an object typed id
On 08/09/2009, at 1:31 AM, Paulo F. Andrade wrote: I don't get this. Won't the call [sender value] be dealt by objc_msgSend? Will it not traverse the isa pointer to get the method table and find the method named value and call that? At least from the UISlider class hierarchy there seems to be only one method named value, no ambiguity there. Yes, but the return type will cause different compilation of objc_msgSend. There are several variants of that (obc_msgSend_fpret, objc_msgSend_stret, etc) depending on which registers are expected to return what sorts of values - structs vs. floats vs. integers/objects for example. So the right method will get called but within the wrong context of what will be returned. You can verify this yourself by disassembling some variants of calling a test method - if only the return type varies and the compiler can't disambiguate based on class of the receiver, it will compile the first version it finds. What's probably occurring in your case is that the compiler has used a version (such as -(id) value) that returns its value in a certain register, whereas the -(float) value method returns it in a different register (an fp register, generally). It just so happens that the register that the caller pulls the result from holds the slider object. I know this. I just want to fully understand why this is happening for this particular name value and not for maximumValue. Probably because -value is ambiguous and -maximumValue is not. Trust me - this happens. It's bitten me once or twice and I won't let that happen again, as it's so hard to understand what's going on and debug it. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Symbolic Links in Snow Leopard
Gerriet M. Denkmann wrote: Try using a pathname that contains only Latin alphabet characters (for reference, the original chars of the volume-name are Thai: \u0e40 \u0e21\u0e48\u0e19). If necessary, create and mount a disk-image in order to get only Latin chars. Did try already - same issue. Also, please show the code that assigns a value to pat1. How that pathname is determined may have a bearing on the problem. Same problem if I just do: pat1 = @/Volumes/เม่น/Users/ gerriet/ Downloads/absAbsSymlink; I'm convinced. 1. File a bug. http://developer.apple.com/bugreporter 2. Check against the latest preview release of the OS, if you have access to it. -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Symbolic Links in Snow Leopard
Jens Alfke wrote: Huh? I never said the path was invalid. /Code/Murky is a perfectly cromulent path on my machine, although it goes through a symlink. Oops. Color me incromulent. I somehow misunderstood your description, and was thinking it was a broken symlink. -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sending the value message to an object typed id
On 08/09/2009, at 1:31 AM, Paulo F. Andrade wrote: At least from the UISlider class hierarchy there seems to be only one method named value, no ambiguity there. A further point - it's not the immediate class hierarchy that is searched. It's the entire namespace, which as you know is everything. And because the compiler uses the first version it encounters, that could well be a method buried deep in the low-level parts of any framework that is visible. To check this, disassemble the code that's calling -value. If it's not using objc_msgSend_fpret then it's done the wrong thing. Compare the disassembly with casting sender to (UISlider*), where it will use objc_msgSend_fpret. Finding the actual method it has based its compilation around is harder (and only of academic interest) - you'll have to search the entire namespace. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Weird malloc error when dealing with lots of NSImage objects
On Sep 7, 2009, at 4:45 AM, DairyKnight wrote: FooProgram(1343,0xa01e1720) malloc: *** mmap(size=30855168) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug 2009-09-07 19:37:17.606 KindPDF[1343:10b] *** NSCopyMemoryPages (0xfc18a000, 0x0, 30851072) failed You have run out of memory and the allocator has failed. In this case, it is a memory-mapped file that is failing which leads to a call to NSCopyMemoryPages() with an address of 0x0 as the destination. Either your app is leaking memory -- which may be in the form of over- caching -- or you are simply trying to shove too much stuff into memory at the same time. Use Instruments' Object Alloc instrument to see what is chewing up the space. b.bum ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Sending the value message to an object typed id
Got it. Thank you! Paulo F. Andrade On 2009/09/07, at 16:51, Graham Cox wrote: Yes, but the return type will cause different compilation of objc_msgSend. There are several variants of that (obc_msgSend_fpret, objc_msgSend_stret, etc) depending on which registers are expected to return what sorts of values - structs vs. floats vs. integers/ objects for example. So the right method will get called but within the wrong context of what will be returned. You can verify this yourself by disassembling some variants of calling a test method - if only the return type varies and the compiler can't disambiguate based on class of the receiver, it will compile the first version it finds. What's probably occurring in your case is that the compiler has used a version (such as -(id) value) that returns its value in a certain register, whereas the -(float) value method returns it in a different register (an fp register, generally). It just so happens that the register that the caller pulls the result from holds the slider object. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
mouseDown Event Position Accuracy (was: NSString drawAtPoint and vertical font alignment)
On 7 Sep 2009, at 01:09, Quincey Morris wrote:
On Sep 6, 2009, at 23:38, Stephen Blinkhorn wrote:
I make a custom view (really a NSControl subclass) and I use a
place holder in IB to position it on screen. I also set it's size
to be say 50 wide by 22 high.
If I draw the view by simply filling the rect returned by [self
bounds] then it looks fine and in the same place as the IB
placeholder. However, the view responds to mouse events outside of
its visual frame at the top edge and only registers mouse events
inside the bottom edge once the cursor is about 3-4 pixels inside
the frame. Whilst only small the inaccuracy feels very wrong after
a while.
I don't understand is the mouse event part. I am filling the
bounds rectangle via NSRectFill but mouse events visibly outside
the filled rectangle are apparently happening inside the bounds
rectangle. I use this to get the event position:
NSPoint p = [self convertPoint:[theEvent locationInWindow]
fromView:nil];
There's not enough information here to suggest an answer. Is there a
placeholder view that you *replace* with a NSControl subclass? Is
this a subclass of NSControl directly, or of a specific control
(e.g. NSButton)?
I am using a direct subclass of NSControl. I create a CustomView
placeholder in IB and assign it to my custom control class.
You'll probably need to post some code to get an answer, but it's
not even clear which code.
I'd suggest you start by putting a breakpoint on the line after the
line you showed above, and then start poking around the view
hierarchy until you find out what numbers aren't what you expect
them to be. It could be a coordinate system snafu, or it could be
something more intimately related to control behavior.
Everything looks OK in the debugger. I have managed to whittle the
code down to this tiny test case. Presented like this it looks like
I'm needlessly fussing over a 3 pixel area at the bottom of the view
that doesn't respond to mouse events but with medium and small sized
controls and switches those 3 pixels become relevant :)
Thanks again,
Stephen
#import Cocoa/Cocoa.h
@interface AS_TestControl : NSControl NSCoding
{
NSRect viewRect;
BOOLselected;
}
@end
#import AS_TestControl.h
@implementation AS_TestControl
-(id)initWithCoder:(NSCoder*)coder
{
if (self = [super initWithCoder:coder])
{
selected = NO;
};
return self;
}
-(void)encodeWithCoder:(NSCoder*)coder
{
[super encodeWithCoder:coder];
}
-(void)dealloc
{
[super dealloc];
}
-(BOOL)isFlipped
{
return NO;
}
+(Class)cellClass
{
return [NSActionCell class];
}
#pragma mark Drawing
- (void)drawRect:(NSRect)rect
{
if(selected == YES) {
[[NSColor greenColor] set];
} else {
[[NSColor blackColor] set];
};
NSRectFill([self bounds]);
}
#pragma mark Events
-(void)mouseDown:(NSEvent*)theEvent
{
NSPoint p = [self convertPoint:[theEvent locationInWindow]
fromView:nil];
if(NSPointInRect(p, [self bounds])) {
selected = YES;
[self setNeedsDisplay:YES];
};
}
-(void)mouseUp:(NSEvent*)theEvent
{
selected = NO;
[self setNeedsDisplay:YES];
}
@end
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Re: Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children.
Josh, The outline view is probably being displayed with an NSArrayController, not just Core Data, which is an abstract term for a ton of APIs. As well, NSArrayController falls into part of Cocoa, as well as Core Data, but that's another story. Assuming your row is removed via an outlet to your NSArrayController's -remove: method, and assuming you're using NSArrayController for this in the first place, simply subclass your NSArrayController and provide the NSAlert behavior by overriding -remove: and then call super's -remove: once the NSAlert has come back positive (for chlamydia). -- Steven Degutis http://www.thoughtfultree.com/ http://www.degutis.org/ On Mon, Sep 7, 2009 at 10:14 AM, Joshua Garnham joshua.garn...@yahoo.co.ukwrote: How would I do this? The Outline View is being used with Core Data. Cheers, Josh. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/steven.degutis%40gmail.com This email sent to steven.degu...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: mouseDown Event Position Accuracy (was: NSString drawAtPoint and vertical font alignment)
Stephen,
The most obvious reason that comes to mind, is that your cursor's exact
point is not located on the exact top of the default +[NSCursor
arrowCursor]. It's actually located a little lower. Try changing your cursor
to the crosshair cursor, or a custom cursor if you'd prefer, and see if it
is acting as expected at that point, by appearing to register clicks
inside the bounds and not outside.
--
Steven Degutis
http://www.thoughtfultree.com/
http://www.degutis.org/
On Mon, Sep 7, 2009 at 11:19 AM, Stephen Blinkhorn
stephen.blinkh...@audiospillage.com wrote:
On 7 Sep 2009, at 01:09, Quincey Morris wrote:
On Sep 6, 2009, at 23:38, Stephen Blinkhorn wrote:
I make a custom view (really a NSControl subclass) and I use a place
holder in IB to position it on screen. I also set it's size to be say 50
wide by 22 high.
If I draw the view by simply filling the rect returned by [self bounds]
then it looks fine and in the same place as the IB placeholder. However,
the view responds to mouse events outside of its visual frame at the top
edge and only registers mouse events inside the bottom edge once the cursor
is about 3-4 pixels inside the frame. Whilst only small the inaccuracy
feels very wrong after a while.
I don't understand is the mouse event part. I am filling the bounds
rectangle via NSRectFill but mouse events visibly outside the filled
rectangle are apparently happening inside the bounds rectangle. I use this
to get the event position:
NSPoint p = [self convertPoint:[theEvent locationInWindow] fromView:nil];
There's not enough information here to suggest an answer. Is there a
placeholder view that you *replace* with a NSControl subclass? Is this a
subclass of NSControl directly, or of a specific control (e.g. NSButton)?
I am using a direct subclass of NSControl. I create a CustomView
placeholder in IB and assign it to my custom control class.
You'll probably need to post some code to get an answer, but it's not even
clear which code.
I'd suggest you start by putting a breakpoint on the line after the line
you showed above, and then start poking around the view hierarchy until you
find out what numbers aren't what you expect them to be. It could be a
coordinate system snafu, or it could be something more intimately related to
control behavior.
Everything looks OK in the debugger. I have managed to whittle the code
down to this tiny test case. Presented like this it looks like I'm
needlessly fussing over a 3 pixel area at the bottom of the view that
doesn't respond to mouse events but with medium and small sized controls and
switches those 3 pixels become relevant :)
Thanks again,
Stephen
#import Cocoa/Cocoa.h
@interface AS_TestControl : NSControl NSCoding
{
NSRect viewRect;
BOOLselected;
}
@end
#import AS_TestControl.h
@implementation AS_TestControl
-(id)initWithCoder:(NSCoder*)coder
{
if (self = [super initWithCoder:coder])
{
selected = NO;
};
return self;
}
-(void)encodeWithCoder:(NSCoder*)coder
{
[super encodeWithCoder:coder];
}
-(void)dealloc
{
[super dealloc];
}
-(BOOL)isFlipped
{
return NO;
}
+(Class)cellClass
{
return [NSActionCell class];
}
#pragma mark Drawing
- (void)drawRect:(NSRect)rect
{
if(selected == YES) {
[[NSColor greenColor] set];
} else {
[[NSColor blackColor] set];
};
NSRectFill([self bounds]);
}
#pragma mark Events
-(void)mouseDown:(NSEvent*)theEvent
{
NSPoint p = [self convertPoint:[theEvent locationInWindow]
fromView:nil];
if(NSPointInRect(p, [self bounds])) {
selected = YES;
[self setNeedsDisplay:YES];
};
}
-(void)mouseUp:(NSEvent*)theEvent
{
selected = NO;
[self setNeedsDisplay:YES];
}
@end
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Re: Problem with LSSharedFileListInsertItemURL() usage. (API in LaunchServices/LSSharedFileList.h)
Parimal,
Your code looks complete and correct, so my only guess is that the variable url
is not actually pointing to [[NSBundle mainBundle] bundleURL] which might
explain it. (Then again, I've only ever dealt with manually adding my
application to the Login Items programmatically in apps that had no Dock
icon, and only used status bar items.)
--
Steven Degutis
http://www.thoughtfultree.com/
http://www.degutis.org/
On Mon, Sep 7, 2009 at 6:10 AM, Parimal Das parimal@webyog.com wrote:
Hello all,
I am trying to do the following- when my app is used for the first
time - *'open
at login'* is selected by default. For that i am calling the code below
for
the app's first run.
The code is working fine and my app is getting added in the login item
list,
But on ctrl+click on my apps dock icon, its failing to show 'open at login'
as selected (tick mark)
What i am missing here??
Please guide.
*LSSharedFileListRef loginListRef = LSSharedFileListCreate(NULL,
kLSSharedFileListSessionLoginItems, NULL);
if (loginListRef) {
// Insert the item at the bottom of Login Items list.
LSSharedFileListItemRef loginItemRef =
LSSharedFileListInsertItemURL(loginListRef,
kLSSharedFileListItemLast,
NULL,
NULL,
(CFURLRef)url, // url is my app location
NULL,
NULL);
if (loginItemRef) {
CFRelease(loginItemRef);
}
CFRelease(loginListRef);
}*
Advance Thanks
-Parimal Das
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Re: Copying records from to-many relationship in Core Data
In case anyone is interested (or understood my post ;-)), Rib Rix is helping me through this one. The issue is that Apple states: You are typically discouraged from performing fetches within an implementation of awakeFromInsert. Although it is allowed, execution of the fetch request can trigger the sending of internal Core Data notifications which may have unwanted side-effects. For example, on Mac OS X, an instance of NSArrayController may end up inserting a new object into its content array twice. One solution (from Rob) is to push the fetch request to the next iteration of the run loop (via -performSelector:withObject:afterDelay:) This fetches properly, does not create two records and (though I have not tried it yet) I believe will allow me to copy the to-many NSManagedObjects. Regards, - S On Sat, Aug 29, 2009 at 4:50 PM, Sean Kline skline1...@gmail.com wrote: Folks, I have a Core Data application with two entities (relevant to this question) with a to-many relationship between them. When I create a new record in Entity 1, I would like to copy the to-many records from Entity 2 from that last record created into the new record. I tried to execute a fetch into an array, but whenever I do this the table that is bound to Entity 1 displays two records. There may be something bizarre that I have done causing this behavior, but does anyone have any general advice or examples to help me achieve what I am trying to do? Thanks, - S ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children.
Steven, The Outline View isn't being displayed with an NSArrayController rather an NSTreeController, but I think you can still override -remove:. Also, how would I check to see whether the row the user wants to delete has any children? Cheer, Josh. From: Steven Degutis steven.degu...@gmail.com To: Joshua Garnham joshua.garn...@yahoo.co.uk Cc: cocoa-dev@lists.apple.com Sent: Monday, 7 September, 2009 17:20:50 Subject: Re: Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children. Josh, The outline view is probably being displayed with an NSArrayController, not just Core Data, which is an abstract term for a ton of APIs. As well, NSArrayController falls into part of Cocoa, as well as Core Data, but that's another story. Assuming your row is removed via an outlet to your NSArrayController's -remove: method, and assuming you're using NSArrayController for this in the first place, simply subclass your NSArrayController and provide the NSAlert behavior by overriding -remove: and then call super's -remove: once the NSAlert has come back positive (for chlamydia). -- Steven Degutis http://www.thoughtfultree.com/ http://www.degutis.org/ On Mon, Sep 7, 2009 at 10:14 AM, Joshua Garnham joshua.garn...@yahoo.co.uk wrote: How would I do this? The Outline View is being used with Core Data. Cheers, Josh. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/steven.degutis%40gmail.com This email sent to steven.degu...@gmail.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children.
On Sep 7, 2009, at 8:14 AM, Joshua Garnham joshua.garn...@yahoo.co.uk wrote: How would I do this? http://www.whathaveyoutried.com --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: mouseDown Event Position Accuracy (was: NSString drawAtPoint and vertical font alignment)
Astonishing... that is the problem. I thought the default hot spot
for the default cursor would be the tip of the arrow. Obviously not.
OK, custom cursors it is then.
Many thanks,
Stephen
On 7 Sep 2009, at 10:24, Steven Degutis wrote:
Stephen,
The most obvious reason that comes to mind, is that your cursor's
exact point is not located on the exact top of the default +
[NSCursor arrowCursor]. It's actually located a little lower. Try
changing your cursor to the crosshair cursor, or a custom cursor if
you'd prefer, and see if it is acting as expected at that point,
by appearing to register clicks inside the bounds and not outside.
--
Steven Degutis
http://www.thoughtfultree.com/
http://www.degutis.org/
On Mon, Sep 7, 2009 at 11:19 AM, Stephen Blinkhorn stephen.blinkh...@audiospillage.com
wrote:
On 7 Sep 2009, at 01:09, Quincey Morris wrote:
On Sep 6, 2009, at 23:38, Stephen Blinkhorn wrote:
I make a custom view (really a NSControl subclass) and I use a place
holder in IB to position it on screen. I also set it's size to be
say 50 wide by 22 high.
If I draw the view by simply filling the rect returned by [self
bounds] then it looks fine and in the same place as the IB
placeholder. However, the view responds to mouse events outside of
its visual frame at the top edge and only registers mouse events
inside the bottom edge once the cursor is about 3-4 pixels inside
the frame. Whilst only small the inaccuracy feels very wrong after
a while.
I don't understand is the mouse event part. I am filling the bounds
rectangle via NSRectFill but mouse events visibly outside the filled
rectangle are apparently happening inside the bounds rectangle. I
use this to get the event position:
NSPoint p = [self convertPoint:[theEvent locationInWindow]
fromView:nil];
There's not enough information here to suggest an answer. Is there a
placeholder view that you *replace* with a NSControl subclass? Is
this a subclass of NSControl directly, or of a specific control
(e.g. NSButton)?
I am using a direct subclass of NSControl. I create a CustomView
placeholder in IB and assign it to my custom control class.
You'll probably need to post some code to get an answer, but it's
not even clear which code.
I'd suggest you start by putting a breakpoint on the line after the
line you showed above, and then start poking around the view
hierarchy until you find out what numbers aren't what you expect
them to be. It could be a coordinate system snafu, or it could be
something more intimately related to control behavior.
Everything looks OK in the debugger. I have managed to whittle the
code down to this tiny test case. Presented like this it looks like
I'm needlessly fussing over a 3 pixel area at the bottom of the view
that doesn't respond to mouse events but with medium and small sized
controls and switches those 3 pixels become relevant :)
Thanks again,
Stephen
#import Cocoa/Cocoa.h
@interface AS_TestControl : NSControl NSCoding
{
NSRect viewRect;
BOOLselected;
}
@end
#import AS_TestControl.h
@implementation AS_TestControl
-(id)initWithCoder:(NSCoder*)coder
{
if (self = [super initWithCoder:coder])
{
selected = NO;
};
return self;
}
-(void)encodeWithCoder:(NSCoder*)coder
{
[super encodeWithCoder:coder];
}
-(void)dealloc
{
[super dealloc];
}
-(BOOL)isFlipped
{
return NO;
}
+(Class)cellClass
{
return [NSActionCell class];
}
#pragma mark Drawing
- (void)drawRect:(NSRect)rect
{
if(selected == YES) {
[[NSColor greenColor] set];
} else {
[[NSColor blackColor] set];
};
NSRectFill([self bounds]);
}
#pragma mark Events
-(void)mouseDown:(NSEvent*)theEvent
{
NSPoint p = [self convertPoint:[theEvent locationInWindow]
fromView:nil];
if(NSPointInRect(p, [self bounds])) {
selected = YES;
[self setNeedsDisplay:YES];
};
}
-(void)mouseUp:(NSEvent*)theEvent
{
selected = NO;
[self setNeedsDisplay:YES];
}
@end
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Re: Sending the value message to an object typed id
On Sep 7, 2009, at 5:11 AM, Graham Cox wrote: I suspect what's occurring is that -value is defined in multiple classes having different return types: maybe float in one case and id in another, say. The compiler can't disambiguate a method based on return type alone so compiles based solely on the first one it encounters, which to all intents and purposes may as well be random. It's a dirty little secret of Obj-C (or at least the current compilers) and is a very real source of bugs (and sometimes quite dangerous ones at that). BTW, Paulo, this situation should have generated a compiler warning saying that it can't tell which version of the 'value' message it should use here. Whenever you get a warning like that, you should cast the receiver to the appropriate class. (This is yet another reason I recommend always enabling treat warnings as errors when building Obj-C code.) —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: How to play the movie(.mov) looped using QTMovie ?
On Sep 7, 2009, at 12:40 AM, James wrote: Using the menu items, user can select to play single movie looped or all movie looped one by one. I looked up the QTMovie class. But, I can not find the method for my purpose. Set the movie's attribute QTMovieLoopsAttribute to YES. (All I did was open QTMovie.h and search for loop, to find this.) —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children.
This.
- (IBAction)remove:(id)sender {
NSArray *selectedRow = [treeController selectedObjects];
NSInteger childrenCount = [selectedRow.children count];
if ([childrenCount != 0])
{
NSLog(@Display Alert);
}else{
NSLog(@Delete Imediately);
}
}
From: Kyle Sluder kyle.slu...@gmail.com
To: Joshua Garnham joshua.garn...@yahoo.co.uk
Cc: cocoa-dev@lists.apple.com cocoa-dev@lists.apple.com
Sent: Monday, 7 September, 2009 17:52:26
Subject: Re: Making an NSAlert be displayed when the User attempts to delete a
row from an NSOutlineView when it has children.
On Sep 7, 2009, at 8:14 AM, Joshua Garnham joshua.garn...@yahoo.co.uk wrote:
How would I do this?
http://www.whathaveyoutried.com
--Kyle Sluder
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Re: Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children.
Hi, NSArray *selectedRow = [treeController selectedObjects]; you get an NSArray - so you should enumerate through the objects of the array NSInteger childrenCount = [selectedRow.children count]; Does not get the children count of anything but the NSArray, which it doesn't have. You should get a warning when compiling. Something along struct or union doesn't blah, blah blah. Told you before: Read the warnings and try to understand them. Cheers, Volker ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Making an NSAlert be displayed when the User attempts to delete a row from an NSOutlineView when it has children.
On Sep 7, 2009, at 10:20 AM, Joshua Garnham
joshua.garn...@yahoo.co.uk wrote:
This.
Excellent response. In the future, it is always better if you include
code or a description of your attempts (even if it's just looking at
the documentation).
- (IBAction)remove:(id)sender {
NSArray *selectedRow = [treeController selectedObjects];
As you noticed, this returns an array, not a single object.
NSInteger childrenCount = [selectedRow.children count];
Which makes this line suspect. An array doesn't have children. Didn't
the compiler issue an error/warning here? If not, you'll probably want
to turn on all warnings and treat warnings as errors. Those options
are so frequently used I think they should be the standard behavior.
--Kyle Sluder
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Re: Does Mac OS X support interior pointers?
On Sep 7, 2009, at 02:32, John Engelhart wrote: [...] I'm not going to engage you on this discussion. If that means I'm ignoring your reasonable requests for clarification, I apologize. However, I do feel the need to acknowledge what I might have previously done wrong ... I may have misused your term 'base pointer' as you defined/intended it. (I did try to suggest I was using the term very loosely, by using quotes: base pointer.) The result demonstrates why these discussions are pointless -- there are multiple terms being used with different strict meanings by different people. A reasonable discussion has to have everyone speaking the same language, and that *never* happens on this subject. I may have sounded sanctimonious, and if so I apologize. These discussions always end up in rudeness and acrimony (shortly before being moderated out of existence, with no resolution), so I was just trying to save everyone time by jumping straight to the rudeness and acrimony, skipping the intervening steps. I mistakenly replied to your original post on the wrong list, so I'm posting this in both places. Any further discussion should go back to objc-language. Or maybe there won't be any further discussion. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
KVO on Distributed Objects with exception handling.
Hello,
I'm using KVO on a Distributed Object, and I am binding my UI controls
based on the observer.
For example:
MonkeyViewController.isEatingABanana - Binded to a UI checkbox.
MonkeyViewController.m:
@propery (readwrite, assign) BOOL isEatingABanana;
-(id)init {
...
[MonkeyBrainDOObject addObserver:self
forKeyPath:@banana
options:(NSKeyValueObservingOptionNew |
NSKeyValueObservingOptionOld)
context:NULL];
...
}
- (void)observeValueForKeyPath:(NSString *)keyPath
ofObject:(id)object
change:(NSDictionary *)change
context:(void *)context
{
if ([keyPath isEqualToString:@banana]) {
[self willChangeValueForKey:@isEatingABanana];
isEatingABanana = [change objectForKey:NSKeyValueChangeNewKey] boolValue];
[self didChangeValueForKey:@isEatingABanana];
}
}
- (void)setIsEatingABanana:(BOOL)flag
{
[MonkeyBrainDOObject setBanana:flag];
isEatingABanana = flag;
}
This indeed works, and we save some hassles of sending NSNotifications and such.
So, what I'm wondering is if the following code is sufficient enough
for the IPC exception handling?
Instead of having to manually write @try/@catch wherever I doing some
IPC, I create a wrapper object around the DO to handle the exceptions.
This wrapper class is simply an NSObject, and will call the methods
methodSignatureForSelector, and forwardInvocation when I try to use
MonkeyBrainDOObject methods (since the wrapper does not understand
them). I can then insert a @try/@catch when I forward the invokations
to the actual DO object.
MonkeyBrainWrapper.m : NSObject
- (NSMethodSignature *)methodSignatureForSelector:(SEL)selector
{
return [MonkeyBrainDOObject methodSignatureForSelector:selector];
// maybe I can use extra code to make sure MonkeyBrainDOObject
responds to the selector.
}
- (void)forwardInvocation:(NSInvocation *)invocation
{
@try {
[invocation invokeWithTarget:MonkeyBrainDOObject];
} @catch (NSException *e) {
// Oh no! some went wrong with the IPC. But it's ok, I caught you.. :P
}
}
So, instead of calling directly on the MonkeyBrainDOObject in my
MonkeyViewController, I would now call my MonkeyBrainWrapper object,
which has explicit exception handling rather than the one handle by
the NSApplication.
Should that be enough for exception handling on both ends of the IPC?
Or do I need some explicit exception handling on the other end? It
seems when I tested it out, my other end never threw anything when the
connection broke.
Also, is there maybe a better approach to all of this? My old code had
a bunch of NSNotifications being sent/received whenever something
needed updating on the UI, and I found this approach to be a lot
cleaner.
Edward
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Re: Turn on zombies in user environment?
On 7 sep 2009, at 05.03, Graham Cox wrote: You're not supposed to type either the $, or the (gdb). They're just there to indicate that you're supposed to type this at a prompt, and what type of prompt you're at. Which was what I thought, but doing that produces much the same result: NSZombieEnabled=YES: Command not found. The syntax I proposed works with bash, the default shell for Mac OS X. If you have changed to using some other shell, you will need to change the syntax to match. j o a r ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: completion handlers?
As mentioned before, the new feature is called Blocks, and is available only for Snow Leopard for the moment (probably being ported to the iPhone too). I've written an introductory guide on what they are and how they work, specifically intended for people who have experience with Objective- C and/or Cocoa, but never heard of Blocks before. Here's the link: http://www.degutis.org/dev/2009/08/30/beginners-guide-to-blocks-in-cocoa/ Thanks a lot for this write-up! I know this question does not really belong on this list, but it's only a short one ;-) It seems to me that Blocks in SL are exactly the same thing as Closures in Smalltalk -- is that correct? Best regards, Gabriel. smime.p7s Description: S/MIME cryptographic signature ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Menu Weirdness (can't set command + 3 or command + 4)
Hi! I've checked the archives, but finding 'command' and '3' for anything relevant is somewhat impossible. I have a situation where if I try to set the key equivalent of a menu to 3 or 4, it just won't happen. any other number--it works just fine. I even made a movie... http://www.conjurebunny.com/ConjureMenuWeirdness.mov The thing is, I can't figure out where to even start trying to debug this. There are no messages on the console, no failure states, no NSZombies, nada. It just won't show up. If I check the keyEquivalent later on, at any time, it will show that the keyEquivalent is whatever I set it to, even 3 and 4. It just won't show up! What the heck could cause something like this??? Thanks! -Chilton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: completion handlers?
On Sep 7, 2009, at 1:08 PM, Gabriel Zachmann z...@tu-clausthal.de wrote: It seems to me that Blocks in SL are exactly the same thing as Closures in Smalltalk -- is that correct? Mostly. ObjC blocks have certain semantics you need to be aware of, since they can live on the stack. Further discussion belongs on the Objective-C language list. --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: KVO on Distributed Objects with exception handling.
Great... How long ago did you ask the Apple engineers? I haven't tried this piece of code with Snow Leopard actually... On Mon, Sep 7, 2009 at 3:29 PM, Graham Leel...@thaesofereode.info wrote: On Sep 7, 2009, at 20:02 , Edward Chan wrote: Hello, I'm using KVO on a Distributed Object, and I am binding my UI controls based on the observer. Hi, not much of constructive help from me I'm afraid, just a warning. I also did the same thing once, and the reaction from Apple engineers went through denial, shock and fear, but never got as far as acceptance. In fact I was told that combining KVO with DO is not supported and if it does work now, don't expect it to work in the future. Cheers, Graham. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: KVO on Distributed Objects with exception handling.
Also, Did they explain why they didn't want to support it? Thanks, Ed On Mon, Sep 7, 2009 at 4:45 PM, Edward Chanedch...@gmail.com wrote: Great... How long ago did you ask the Apple engineers? I haven't tried this piece of code with Snow Leopard actually... On Mon, Sep 7, 2009 at 3:29 PM, Graham Leel...@thaesofereode.info wrote: On Sep 7, 2009, at 20:02 , Edward Chan wrote: Hello, I'm using KVO on a Distributed Object, and I am binding my UI controls based on the observer. Hi, not much of constructive help from me I'm afraid, just a warning. I also did the same thing once, and the reaction from Apple engineers went through denial, shock and fear, but never got as far as acceptance. In fact I was told that combining KVO with DO is not supported and if it does work now, don't expect it to work in the future. Cheers, Graham. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Need simple port scan
I'm very new to networking via cocoa and need to develop a small port scanner application. The core of it is very simple, is address 1.2.3.4 listening on port X. I've done a bit of looking on NSStream, pipes, tasks and such but hopefully what I'm trying to get is a short and sweet. What specifically should I be checking into or does anyone happen to have a snippet of code that does the above? Ashley Perrien Random Quote of the day: No prizes for predicting rain. Prizes only awarded for building arks. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: completion handlers?
On Sep 7, 2009, at 1:08 PM, Gabriel Zachmann wrote: It seems to me that Blocks in SL are exactly the same thing as Closures in Smalltalk -- is that correct? Actually, Smalltalk calls them blocks too — that's where Obj-C, and Ruby, got the name from. (The Obj-C object model has always been very Smalltalk-inspired.) But yes, they're the same thing. They're also the same thing as function literals in JavaScript and lambdas in Python. It's been a very popular concept, going all the way back to 1960s' LISP. —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Menu Weirdness (can't set command + 3 or command + 4)
On Sep 7, 2009, at 1:37 PM, Chilton Webb wrote: I have a situation where if I try to set the key equivalent of a menu to 3 or 4, it just won't happen. any other number--it works just fine. There are probably some other menu commands that already have those key equivalents. I suspect the Services submenu. I'm not sure whether services override regular menu commands or the other way 'round, but that sounds like what's happening in your case. (I know that Command-Shift-3 and -4 are reserved for screenshots, but you're clearly not using Shift...) —Jens___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSLineBreakByClipping is not clipping
I'm drawing an attributed string with drawInRect which is documented to clip to the rect you pass in. The line break mode of the paragraph style is NSLineBreakByClipping. If the string's text is too wide for the rect (even by a lot), it draws outside of the rect. I've noticed that this only happens if the string will not vertically clip the text with the given rectangle. In other words, if there's enough vertical room for the text but not enough horizontal room, it will not clip the text. If there's not enough vertical room and not enough horizontal room, both axis are properly clipped to the rect. I've also noticed that if I use NSLineBreakByTruncatingTail, it works fine all the time. Screenshot: http://www.sethwillits.com/temp/StringClippingBug.png Code: http://www.pasteit4me.com/32015 Is this a bug? -- Seth Willits ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Need simple port scan
On Sep 7, 2009, at 1:56 PM, Ashley Perrien wrote: I'm very new to networking via cocoa and need to develop a small port scanner application. The core of it is very simple, is address 1.2.3.4 listening on port X. I've done a bit of looking on NSStream, pipes, tasks and such but hopefully what I'm trying to get is a short and sweet. What specifically should I be checking into or does anyone happen to have a snippet of code that does the above? Does it have to be a Cocoa API? You should be able to use the Unix BSD sockets API, which IMHO if you're looking for short and sweet you might as well use. If you really want a Cocoa API, then I think NSSocketPort is probably what you're looking for. Alternatively, use NSStream's class method + getStreamsToHost:port:inputStream:outputStream:. Pete ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSKeyedUnarchiver and memory management
I included this method in the MyObject class as part of implementing
the NSCoder protocol:
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super init];
theData = [[aDecoder decodeObjectForKey:@theData] retain];
return self;
}
This is how I read the object from disk:
MyObject *myob = [NSKeyedUnarchiver unarchiveObjectWithFile:filepath];
(Garbage collection is not activated.) My understanding of the memory
management rules is that I don't need to release myob. And I get
EXC_BAD_ACCESS errors when I do.
But Instruments is complaining about a memory leak, and mentions
NSKeyedUnarchiver. The retain message in the initWithCoder makes me
wonder.
Is this code leaking? Should I add an autorelease to the retain in
initWithCoder?
dkj
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Re: NSKeyedUnarchiver and memory management
P.S. Doing the autorelease thing gave me an EXC_BAD_ACCESS too. And theData is released in the dealloc method of MyObject. dkj ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: (no subject)
According to the memory management rules, yes, you own the object returned by that method and you should therefore release it. You take ownership of an object if you create it using a method whose name begins with “alloc” or “new” or contains “copy” (for example, alloc,newObject, or mutableCopy), or if you send it a retain message. You are responsible for relinquishing ownership of objects you own using releaseor autorelease. Any other time you receive an object, you must not release it. Also note the documentation for that method: An initialized collection view item with the specified object and the appropriate view set. The collection view item should not be autoreleased. - Bryan On Sep 7, 2009, at 6:23:30 PM, Colin Deasy wrote: Does the returned obj from this method: - (NSCollectionViewItem *)newItemForRepresentedObject:(id)object require a release? ThanksColin _ Share your memories online with anyone you want. http://www.microsoft.com/ireland/windows/windowslive/products/photos-share.aspx?tab=1___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/bryanhenry%40mac.com This email sent to bryanhe...@mac.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Need simple port scan
I'm very new to networking via cocoa and need to develop a small port scanner application. The core of it is very simple, is address 1.2.3.4 listening on port X. Does it have to be a Cocoa API? You should be able to use the Unix BSD sockets API, which IMHO if you're looking for short and sweet you might as well use. Doesn't need to be cocoa I guess, as long as it ends with a yes or no, that should be fine. If you really want a Cocoa API, then I think NSSocketPort is probably what you're looking for. Alternatively, use NSStream's class method + getStreamsToHost:port:inputStream:outputStream:. I'll look at that again but when I did before it seemed to need lots of support around it (creating pipes and streams, archiving data to files, etc.) that I was hoping to avoid having to learn about, or find some kind of simple tutorials on it as much of that is well beyond what I've been doing thus far. Ashley ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Anti-aliasing in Snow Leopard (10.6) PDFView
It used to be that PDFView anti-aliased nicely. Now it doesn't, at least not for some files. Text and scans rendered in both the PDKKitViewer and PDFLinker2 samples are horrible in 10.6. I understand that shouldAntiAlias defaults to true, but even setting it explicitly does not seem to help. The display is the same as in Preview when PDF smoothing is turned off in Preview preferences. Am I missing something obvious? Thanks in anticipation Duncan McGregor ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Need simple port scan
Ashley Perrien wrote: I'm very new to networking via cocoa and need to develop a small port scanner application. Why do you need this port scanner? Are you going to distribute it, or just run it yourself? Is it a class project or assignment? Does it absolutely have to be Cocoa? If so, why? Have you tried googling? I see a lot of hits for keywords open source Cocoa port scanner. If those don't meet your needs, why not? The Apple-provided application Network Utility.app contains an embedded port scanner, which it runs when you use its Port Scan tab. If you don't need to distribute the app, and can do some digging to figure out the command-line parameters, you might be able to run that embedded port scanner instead of writing your own. Its name is 'stroke', and you can open the Network Utility.app bundle and see it in Resources. Another option would be to google keywords like open source BSD port scanner and see what comes up. Mac OS X can run a lot of BSD code without any source changes. -- GG ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Need simple port scan
Deusty: AsyncSocket 4.3.4http://deusty.blogspot.com/2008/02/asyncsocket-434.html http://deusty.blogspot.com/2008/02/asyncsocket-434.htmlJust create an instance with your address and port and connect with a timeout. It's not conclusive proof of a port being open or closed (there's no way to get conclusive proof), but does the job. If it fails to connect before the timeout, you get a delegate message. On Mon, Sep 7, 2009 at 4:56 PM, Ashley Perrien perr...@earthlink.netwrote: I'm very new to networking via cocoa and need to develop a small port scanner application. The core of it is very simple, is address 1.2.3.4 listening on port X. I've done a bit of looking on NSStream, pipes, tasks and such but hopefully what I'm trying to get is a short and sweet. What specifically should I be checking into or does anyone happen to have a snippet of code that does the above? Ashley Perrien Random Quote of the day: No prizes for predicting rain. Prizes only awarded for building arks. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/bgulanowski%40gmail.com This email sent to bgulanow...@gmail.com -- Brent Gulanowski ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
(no subject)
Does the returned obj from this method: - (NSCollectionViewItem *)newItemForRepresentedObject:(id)object require a release? ThanksColin _ Share your memories online with anyone you want. http://www.microsoft.com/ireland/windows/windowslive/products/photos-share.aspx?tab=1___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSImage rotation regression?
This image rotation code works when compiled with the 10.5
SDK (64-bit, garbage collected).
- (NSImage *) rotateImage: (NSImage *) anImage
byDegrees: (CGFloat) degrees
{
// create an image for the rotated size
NSSize originalSize = [[anImage bestRepresentationForDevice:nil]
size];
NSSize rotatedSize;
if (degrees == 180.0)
rotatedSize = NSMakeSize(originalSize.width, originalSize.height);
else
rotatedSize = NSMakeSize(originalSize.height, originalSize.width);
NSImage *rotatedImage = [[NSImage alloc] initWithSize:
rotatedSize];
[rotatedImage lockFocus];
NSAffineTransform* transform = [NSAffineTransform transform];
NSPoint centerPoint = NSMakePoint(rotatedSize.width / 2,
rotatedSize.height / 2);
[transform translateXBy: centerPoint.x yBy: centerPoint.y];
[transform rotateByDegrees: degrees];
[transform translateXBy: -centerPoint.y yBy: -centerPoint.x];
[transform concat];
NSRect rect = NSMakeRect(0, 0, originalSize.width,
originalSize.height);
[[anImage bestRepresentationForDevice:nil] drawInRect: rect];
[rotatedImage unlockFocus];
return rotatedImage;
}
When the returned image is put in an NSImageView with -setImage: it
shows
up rotated and centered as expected. The same code does not work
when the SDK is changed to 10.6. The image is not rotated. If I move
-lockFocus to immediately before -drawInRect: the image is rotated, but
not scaled to fit in the NSImageView. Instead its origin is placed at
the lower left of the view with the upper portion of the image clipped.
Any pointers on where to look and what to read? I see that
-bestRepresentationForDevice: is deprecated and I've also read of some
underlying drawing changes, but don't understand how that may effect
my code.
Thanks,
/\/\arc
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Re: Turn on zombies in user environment?
On 08/09/2009, at 5:27 AM, Kyle Sluder wrote: IIRC the default shell on Jaguar and earlier was tcsh. If you've upgraded your Mac throughout the ages, that might have stuck. --Kyle Sluder Indeed, it was set to tcsh. I have upgraded a few times but I generally set up a new Mac by copying files from my previous one, so I guess the setting was copied too. Thanks all, I have it working. --Graham ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSKeyedUnarchiver and memory management
On 08/09/2009, at 7:53 AM, DKJ wrote:
- (id)initWithCoder:(NSCoder *)aDecoder
{
self = [super init];
theData = [[aDecoder decodeObjectForKey:@theData] retain];
return self;
}
This is how I read the object from disk:
MyObject *myob = [NSKeyedUnarchiver unarchiveObjectWithFile:filepath];
(Garbage collection is not activated.) My understanding of the
memory management rules is that I don't need to release myob. And I
get EXC_BAD_ACCESS errors when I do.
But Instruments is complaining about a memory leak, and mentions
NSKeyedUnarchiver. The retain message in the initWithCoder makes
me wonder.
Is this code leaking? Should I add an autorelease to the retain in
initWithCoder?
Yes, you could keep guessing, making wild stabs in the dark without
really understanding it until it seems to work. Or you could get your
nose into the documentation and work it out ;-)
Your initWithCoder method is fine, assuming of course that you release
'theData' in your dealloc method. Hint: make 'theData' a retained
property and it becomes much easier to manage.
The problem is in the other line you posted. [NSKeyedUnarchiver
unarchiveObjectWithData:] does not contain the word 'alloc', 'new' or
'copy' therefore you do not own the object it returns. If you'd like
to, you need to retain it, and that would later be balanced by a -
release when you are no longer interested in it. Releasing without a
retain is an over-release and will cause the EXC_BAD_ACCESS.
--Graham
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Strangest UITable bug
Ok I have the weirdest UITableViewBug.. I've set up the delegate, datasource, etc. My data appears correctly in the table. HOWEVER, when I click the table once, it ignores the first click. Then, if I click it again on a different cell, it shows that I clicked the previous cell. In fact each subsequent touch shows that I clicked the cell just previous to it. I have no clue how I managed to screw up a tableview like this but does any one have any idea how I might have done this? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage rotation regression?
The -bestRepresentationFirDrevice: method is doing nothing better than
[anImage size] would do for you.
You are not doing anything useful with rotatedSize in your code.
Your test for if (degrees == 180.0) is completely pointless. If you
were going to do it anyway, you should be looking for 90, 180, and 270
degrees as well as all other multiples of 90 deg.
Why do you copy originalSize into rect?
How about the following alternative code typed in Mail
@implementation NSImage (MYAdditions)
- (NSImage *)copyRotatedByDegrees:(CGFloat)degrees
{
NSSize originalSize = [self size];
NSRect originalRect = NSMakeRect(0.0, 0.0, originalSize.width,
originalSize.height);
NSSize halfOriginalSize = NSMakeSize(originalSize.width / 2.0,
originalSize.height / 2.0);
NSAffineTransform* transform = [NSAffineTransform transform];
[transform rotateByDegrees: fmod(degrees, 45.0)];
NSSize halfRotatedSize = [transform transformSize:halfOriginalSize];
NSSize rotatedSize = NSMakeSize( (2.0 * halfRotatedSize.width),
(2.0 * halfRotatedSize.height));
[transform rotateByDegrees: -fmod(degrees, 45.0)];
NSImage *rotatedImage = [[[NSImage alloc]
initWithSize:rotatedSize] autorelease];
[rotatedImage setBackgroundColor:[NSColor clearColor]];
[rotatedImage lockFocus];
[transform translateXBy:halfRotatedSize.width
yBy:halfRotatedSize.height];
[transform rotateByDegrees: degrees];
[transform translateXBy: -halfRotatedSize.width yBy: -
halfRotatedSize.height];
[transform concat];
[self drawAtPoint:NSZeroPoint fromRect:originalRect
operation:NSCompositeSourceOver fraction:1.0];
[[NSColor blackColor] set];
NSFrameRect(originalRect);
[rotatedImage unlockFocus];
return rotatedImage;
}
@end
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Re: NSImage rotation regression?
On Sep 7, 2009, at 2:16 PM, Erik Buck wrote: The -bestRepresentationFirDrevice: method is doing nothing better than [anImage size] would do for you. Correct in its first use, incorrect for it's second use. That doesn't resolve the issue. You are not doing anything useful with rotatedSize in your code. NSImage *rotatedImage = [[NSImage alloc] initWithSize: rotatedSize]; Looks like I'm doing something with it there, no? Your test for if (degrees == 180.0) is completely pointless. If you were going to do it anyway, you should be looking for 90, 180, and 270 degrees as well as all other multiples of 90 deg. Rotated size swaps X and Y for other than 180 degree rotations. There is an assumption in the code that rotations will only be mod 90 degrees. I left the comment out that says this in the code posted to the list. Oops. Why do you copy originalSize into rect? OK, that one I can't answer other to say because the code I copied did that :-) Since it worked in the 10.5 SDK I didn't much question what was going on. How about the following alternative code typed in Mail I'll play with that once I understand what it is doing. Thanks. /\/\arc ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Strangest UITable bug
Do you want help guessing or help solving? If you're after the latter, you should post your code. Hank On Sep 7, 2009, at 9:10 PM, Development wrote: Ok I have the weirdest UITableViewBug.. I've set up the delegate, datasource, etc. My data appears correctly in the table. HOWEVER, when I click the table once, it ignores the first click. Then, if I click it again on a different cell, it shows that I clicked the previous cell. In fact each subsequent touch shows that I clicked the cell just previous to it. I have no clue how I managed to screw up a tableview like this but does any one have any idea how I might have done this? ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/hank.list %40runbox.com This email sent to hank.l...@runbox.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
UIWebView height calculation
Hi,
1. I am trying to find how much text fits in a UIWebView of a certain
size (let's say 320x400).
For this, I am using a UIWebViewDelegate in the following way:
- (void)webViewDidFinishLoad:(UIWebView *)webView{
//...
CGSize size = [webView sizeThatFits:CGSizeZero];
int h = size.height;
if(h=maxHeight) {
//add another character to the string htmlContent
...
} else {
//reached the maximum height, do nothing
return;
}
[webView loadHTMLString:htmlContent baseURL:[NSURL URLWithString:@]];
}
Is it a good idea to call loadHTMLString from a delegate?
The delegate is supposed to run in a different thread than the main one
2. Is there a simpler way to find how much content can fit in a UIWebView?
Thanks a lot,
Dragos
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Re: UIWebView height calculation
- (void) webViewDidFinishLoad:(UIWebView *)sender {
[self performSelector:@selector(calculateWebViewSize) withObject:nil
afterDelay:0.1];
}
- (void) calculateWebViewSize {
//size the notes view
float newHeight = [[notesWebView
stringByEvaluatingJavaScriptFromString
:@document.documentElement.scrollHeight] floatValue];
}
On Sep 7, 2009, at 9:16 PM, Dragos Ionel wrote:
Hi,
1. I am trying to find how much text fits in a UIWebView of a certain
size (let's say 320x400).
For this, I am using a UIWebViewDelegate in the following way:
- (void)webViewDidFinishLoad:(UIWebView *)webView{
//...
CGSize size = [webView sizeThatFits:CGSizeZero];
int h = size.height;
if(h=maxHeight) {
//add another character to the string htmlContent
...
} else {
//reached the maximum height, do nothing
return;
}
[webView loadHTMLString:htmlContent baseURL:[NSURL
URLWithString:@]];
}
Is it a good idea to call loadHTMLString from a delegate?
The delegate is supposed to run in a different thread than the main
one
2. Is there a simpler way to find how much content can fit in a
UIWebView?
Thanks a lot,
Dragos
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Alex Kac - President and Founder
Web Information Solutions, Inc.
Forgiveness is not an occasional act: it is a permanent attitude.
-- Dr. Martin Luther King
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Re: Menu Weirdness (can't set command + 3 or command + 4)
On Sep 7, 2009, at 5:31 PM, Jens Alfke wrote: On Sep 7, 2009, at 1:37 PM, Chilton Webb wrote: I have a situation where if I try to set the key equivalent of a menu to 3 or 4, it just won't happen. any other number--it works just fine. There are probably some other menu commands that already have those key equivalents. I suspect the Services submenu. I'm not sure whether services override regular menu commands or the other way 'round, but that sounds like what's happening in your case. I suspect Jens is right. Command-3 is definitely okay for applications. The Finder has used it forever, and it works in my application (as does Command-4). It looks like you're running Snow Leopard, so maybe go into System Preferences - Keyboard - Keyboard Shortcuts and see if Command-3 and Command-4 are mapped to a Service (or anything else, for that matter)? By the way, this isn't related, but you don't need to do [NSString stringWithFormat:@5]. You can just say @5. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Menu Weirdness (can't set command + 3 or command + 4)
On Sep 7, 2009, at 10:35 PM, Andy Lee wrote: On Sep 7, 2009, at 5:31 PM, Jens Alfke wrote: On Sep 7, 2009, at 1:37 PM, Chilton Webb wrote: I have a situation where if I try to set the key equivalent of a menu to 3 or 4, it just won't happen. any other number--it works just fine. There are probably some other menu commands that already have those key equivalents. I suspect the Services submenu. I'm not sure whether services override regular menu commands or the other way 'round, but that sounds like what's happening in your case. I suspect Jens is right. Command-3 is definitely okay for applications. The Finder has used it forever, and it works in my application (as does Command-4). It looks like you're running Snow Leopard, so maybe go into System Preferences - Keyboard - Keyboard Shortcuts and see if Command-3 and Command-4 are mapped to a Service (or anything else, for that matter)? Hm, it looks like app menus override Services menus. According to my System Preferences, Command-Shift-Y is the shortcut for Make New Sticky Note. I tried it in Mail and it did the Mail thing, which was Message - Add Sender to Address Book. I tried it in Safari and it created a new Sticky. I guess this makes sense. So it isn't Services after all. Are you positive you don't have Command-3 and Command-4 mapped to something else? --Andy By the way, this isn't related, but you don't need to do [NSString stringWithFormat:@5]. You can just say @5. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/aglee%40mac.com This email sent to ag...@mac.com ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSImage with Core Foundation Console Application failed?
Hi all, I'm trying to use NSImage in a Cocoa Console App, but every time I tried to save the NSImage into a file through NSImageRep, it failed with NSData.length = 0. This is what I did: NSImage *surface = [[NSImage alloc] initWithSize:NSMakeSize(786 * 2, 1144 * 2)]; NSBitmapImageRep *jpgRep = [NSBitmapImageRep imageRepWithData:[surface TIFFRepresentation]]; NSDictionary *jpgProp = [NSDictionary dictionaryWithObject:[NSNumber numberWithFloat:0.7] forKey:NSImageCompressionFactor]; NSData *dat = [jpgRep representationUsingType:NSJPEGFileType properties :jpgProp]; if ([dat length] == 0) NSLog(@Data is zero); [dat writeToFile:@dummyfile.jpg atomically:YES]; Anyone knows why? Thanks. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage with Core Foundation Console Application failed?
On Sep 7, 2009, at 8:08 PM, DairyKnight dairykni...@gmail.com wrote: NSBitmapImageRep *jpgRep = [NSBitmapImageRep imageRepWithData:[surface TIFFRepresentation]]; Is -TIFFRepresentation returning nil? --Kyle Sluder ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: KVO on Distributed Objects with exception handling.
In spite of the fact that it might be working, it isn't supported.
When I talked to engineering about this, this is what I was told. He
was a bit shocked it worked at all, and it isn't tested as part of
releases.
On Sep 7, 2009, at 3:02 PM, Edward Chan wrote:
Hello,
I'm using KVO on a Distributed Object, and I am binding my UI controls
based on the observer.
For example:
MonkeyViewController.isEatingABanana - Binded to a UI checkbox.
MonkeyViewController.m:
@propery (readwrite, assign) BOOL isEatingABanana;
-(id)init {
...
[MonkeyBrainDOObject addObserver:self
forKeyPath:@banana
options:(NSKeyValueObservingOptionNew |
NSKeyValueObservingOptionOld)
context:NULL];
...
}
- (void)observeValueForKeyPath:(NSString *)keyPath
ofObject:(id)object
change:(NSDictionary *)change
context:(void *)context
{
if ([keyPath isEqualToString:@banana]) {
[self willChangeValueForKey:@isEatingABanana];
isEatingABanana = [change objectForKey:NSKeyValueChangeNewKey]
boolValue];
[self didChangeValueForKey:@isEatingABanana];
}
}
- (void)setIsEatingABanana:(BOOL)flag
{
[MonkeyBrainDOObject setBanana:flag];
isEatingABanana = flag;
}
This indeed works, and we save some hassles of sending
NSNotifications and such.
So, what I'm wondering is if the following code is sufficient enough
for the IPC exception handling?
Instead of having to manually write @try/@catch wherever I doing some
IPC, I create a wrapper object around the DO to handle the exceptions.
This wrapper class is simply an NSObject, and will call the methods
methodSignatureForSelector, and forwardInvocation when I try to use
MonkeyBrainDOObject methods (since the wrapper does not understand
them). I can then insert a @try/@catch when I forward the invokations
to the actual DO object.
MonkeyBrainWrapper.m : NSObject
- (NSMethodSignature *)methodSignatureForSelector:(SEL)selector
{
return [MonkeyBrainDOObject methodSignatureForSelector:selector];
// maybe I can use extra code to make sure MonkeyBrainDOObject
responds to the selector.
}
- (void)forwardInvocation:(NSInvocation *)invocation
{
@try {
[invocation invokeWithTarget:MonkeyBrainDOObject];
} @catch (NSException *e) {
// Oh no! some went wrong with the IPC. But it's ok, I caught
you.. :P
}
}
So, instead of calling directly on the MonkeyBrainDOObject in my
MonkeyViewController, I would now call my MonkeyBrainWrapper object,
which has explicit exception handling rather than the one handle by
the NSApplication.
Should that be enough for exception handling on both ends of the IPC?
Or do I need some explicit exception handling on the other end? It
seems when I tested it out, my other end never threw anything when the
connection broke.
Also, is there maybe a better approach to all of this? My old code had
a bunch of NSNotifications being sent/received whenever something
needed updating on the UI, and I found this approach to be a lot
cleaner.
Edward
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Re: KVO on Distributed Objects with exception handling.
On Sep 7, 2009, at 4:45 PM, Edward Chan wrote: Great... How long ago did you ask the Apple engineers? I haven't tried this piece of code with Snow Leopard actually... It still isn't supported in SL. I'd be shocked if it ever is. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
NSController's class accessing NSDocument methods
Hi all,
I have a fairly simple app, with an Entity table and a DataRows table
(each has a controller), set up using bindings (no Core Data). I've
set it up so when I select an Entity in the Entities table, the
DataRows table refreshes by calling my Entity.selection.dataRows
accessor method.
I have a MyDocument/File's Owner, NSOutlineView and bound
NSTreeController in a nib file. The outline/table shows a list of
Entities (nothing to do with Cocoa or CoreData) in the current
document/file. I have successfully set up accessor methods for
properties of Entity such as name and type. But I'm trying to set up
another accessor method (dataRows) that depends on the document path.
I can't see how to access the NSDocument methods from an Entity within
it. How is it done?
Here's some code:
// Entity.h
#import Cocoa/Cocoa.h
@interface Entity : NSObject
{
}
@property (retain) NSString* type;
@property (retain) NSString* name;
@property (retain) NSMutableArray* dataRows;
@end
// Entity.m
#import Entity.h
#import MyGenerator.h
@implementation Entity
@synthesize type;
@synthesize name;
@synthesize dataRows;
- (NSMutableArray*) dataRows
{
// ***
// I need this next line to instead get the path of the document that
// shares the controller's nib, rather than being hard coded.
// Something like: fileString = [[linkToDocument fileURL] path]
// ***
NSString* fileString = @/Users/tom/Documents/MyFile.sqlitedb;
NSString* selectedEntityName = [self name];
NSMutableArray* dataRowsArray = [MyGenerator
dataRowsGivenFilePath:fileString entityName:selectedEntityName];
return dataRowsArray;
}
Thanks in advance,
Tom
BareFeet
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Framework versioning and handling multiple OS SDK's?
Hey All, I've got a framework (GDKit) that I maintain - started writing it on 10.5. I'm running into something I'm not sure how to handle. -So far, everything I've been writing in GDKit links against 10.5, and applications I've been writing link against GDKit, and 10.5. -I have some new classes I want to add to the framework, but some of the API's are in 10.6 only. -The new classes and features in my framework are optional - because they require 10.6, but I don't want to have to change all of my applications to require 10.6. What I'm trying to figure out is how to keep the framework compiling for 10.5, but optionally including the new features/classes when it's compiling for 10.6. There's just a few things I'm unclear of.. -When it's compiling for 10.5, can I completely exclude files from compiling (the 10.6 features)? Is that the right way to exclude features? -When I link against GDKit from an application, how can I have the app link against GDKit that include only the 10.5 features? Or optionally link against the build that includes the 10.6 features? I've been reading about framework versioning, and what they recommend is creating a new major version. But that doesn't really help my problem - as creating a new major version would require the 10.6 SDK. Hopefully that makes sense. Does anyone know of any blog posts or tutorials about this particular situation? Any ideas would be sweet. ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: NSImage rotation regression?
Hi Marco,
I dropped the code below in a test app, and it seemed to work fine on 10.6
with 90 as the number of degrees.
Perhaps you could make a full test app that demonstrates the issue?
-Ken
On Mon, Sep 7, 2009 at 4:21 PM, Marco S Hyman m...@snafu.org wrote:
This image rotation code works when compiled with the 10.5
SDK (64-bit, garbage collected).
- (NSImage *) rotateImage: (NSImage *) anImage
byDegrees: (CGFloat) degrees
{
// create an image for the rotated size
NSSize originalSize = [[anImage bestRepresentationForDevice:nil] size];
NSSize rotatedSize;
if (degrees == 180.0)
rotatedSize = NSMakeSize(originalSize.width, originalSize.height);
else
rotatedSize = NSMakeSize(originalSize.height, originalSize.width);
NSImage *rotatedImage = [[NSImage alloc] initWithSize: rotatedSize];
[rotatedImage lockFocus];
NSAffineTransform* transform = [NSAffineTransform transform];
NSPoint centerPoint = NSMakePoint(rotatedSize.width / 2,
rotatedSize.height / 2);
[transform translateXBy: centerPoint.x yBy: centerPoint.y];
[transform rotateByDegrees: degrees];
[transform translateXBy: -centerPoint.y yBy: -centerPoint.x];
[transform concat];
NSRect rect = NSMakeRect(0, 0, originalSize.width, originalSize.height);
[[anImage bestRepresentationForDevice:nil] drawInRect: rect];
[rotatedImage unlockFocus];
return rotatedImage;
}
When the returned image is put in an NSImageView with -setImage: it shows
up rotated and centered as expected. The same code does not work
when the SDK is changed to 10.6. The image is not rotated. If I move
-lockFocus to immediately before -drawInRect: the image is rotated, but
not scaled to fit in the NSImageView. Instead its origin is placed at
the lower left of the view with the upper portion of the image clipped.
Any pointers on where to look and what to read? I see that
-bestRepresentationForDevice: is deprecated and I've also read of some
underlying drawing changes, but don't understand how that may effect
my code.
Thanks,
/\/\arc
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Re: Menu Weirdness (can't set command + 3 or command + 4)
Hi guys! Mystery solved--it was something already assigned to that in a menu deep in a nested menu, inside the NIB. I had to comb through the designable.nib in a text editor, actually, to find it. So for future reference, not being able to set a menu can be caused by another menu item being set to it, elsewhere. This isn't the first time I've seen this, duplicate settings for key equivalents actually caused a recurring crash in an earlier version of the app (last week). So that's all it was. Thanks everyone for your help! -Chilton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Menu Weirdness (can't set command + 3 or command + 4)
On Sep 8, 2009, at 12:13 AM, Chilton Webb wrote: I realize it's not immediately evident, but I'm inside a for loop, and I'm checking to see if 'i' is less than 9 prior to doing this. If it is, in my original code, I would use @%d, i there to increase the numbers as it goes down the list. Ah, I see. Could this be a problem with the NIB? I'm really grasping at straws here--this should 'just work'. I was about to suggest grepping the nib for 3 and 4, but I see you've already solved it. --Andy ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Menu Weirdness (can't set command + 3 or command + 4)
Hi Andy and Jens, Thank you for your replies. It's not something system-wide, as I CAN set it to things like command +shift+3. That works fine, oddly enough. And if I set it to all of any one number, obviously it lets me set it to those numbers, even though they're already in use farther up the menu. The only problem is that it won't show command+3 and command+4 Furthermore, this works fine in a test app I wrote that just populates the menus. It even uses the same code. So it's definitely not system- wide. On Sep 7, 2009, at 9:35 PM, Andy Lee wrote: By the way, this isn't related, but you don't need to do [NSString stringWithFormat:@5]. You can just say @5. I realize it's not immediately evident, but I'm inside a for loop, and I'm checking to see if 'i' is less than 9 prior to doing this. If it is, in my original code, I would use @%d, i there to increase the numbers as it goes down the list. That's where I'm seeing this--my finished product works great if you want to use command+anything except 3 and 4. Could this be a problem with the NIB? I'm really grasping at straws here--this should 'just work'. Thanks! -Chilton ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Weird malloc error when dealing with lots of NSImage objects
I found the problem. It seems rather than autoreleasing the outputBitmapRep, I should first CGImageReleasethe 'thickenedCGImg'. This creates a dilemma because thickenedCGImg lies inside a function. I have to change the function to return a CGImage instead. From Apple's Cocoa document, it says the NSImageBitmapRep which [NSImgRep CGImage] returns is 'Readonly', so that probably means releasing the object doesn't release the correspondent CGImage. On Tue, Sep 8, 2009 at 12:06 AM, Bill Bumgarner b...@mac.com wrote: On Sep 7, 2009, at 4:45 AM, DairyKnight wrote: FooProgram(1343,0xa01e1720) malloc: *** mmap(size=30855168) failed (error code=12) *** error: can't allocate region *** set a breakpoint in malloc_error_break to debug 2009-09-07 19:37:17.606 KindPDF[1343:10b] *** NSCopyMemoryPages(0xfc18a000, 0x0, 30851072) failed You have run out of memory and the allocator has failed. In this case, it is a memory-mapped file that is failing which leads to a call to NSCopyMemoryPages() with an address of 0x0 as the destination. Either your app is leaking memory -- which may be in the form of over-caching -- or you are simply trying to shove too much stuff into memory at the same time. Use Instruments' Object Alloc instrument to see what is chewing up the space. b.bum ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
Re: Problem with LSSharedFileListInsertItemURL() usage. (API in LaunchServices/LSSharedFileList.h)
The 'url' path is correct as it is adding my app to the login item list,
I suspect that, as i am calling this method in awakeFromNib: , dock is
getting created first and then the app is getting added in the login item
list.
Can you suggest some events, which can be called before app generates its
dock icon.
I tried with applicationWillFinishLaunching, but did not work for me.
Any insights??
-Parimal
On Mon, Sep 7, 2009 at 9:58 PM, Steven Degutis steven.degu...@gmail.comwrote:
Parimal,
Your code looks complete and correct, so my only guess is that the
variable url is not actually pointing to [[NSBundle mainBundle] bundleURL]
which might explain it. (Then again, I've only ever dealt with manually
adding my application to the Login Items programmatically in apps that had
no Dock icon, and only used status bar items.)
--
Steven Degutis
http://www.thoughtfultree.com/
http://www.degutis.org/
On Mon, Sep 7, 2009 at 6:10 AM, Parimal Das parimal@webyog.comwrote:
Hello all,
I am trying to do the following- when my app is used for the first
time - *'open
at login'* is selected by default. For that i am calling the code below
for
the app's first run.
The code is working fine and my app is getting added in the login item
list,
But on ctrl+click on my apps dock icon, its failing to show 'open at
login'
as selected (tick mark)
What i am missing here??
Please guide.
*LSSharedFileListRef loginListRef = LSSharedFileListCreate(NULL,
kLSSharedFileListSessionLoginItems, NULL);
if (loginListRef) {
// Insert the item at the bottom of Login Items list.
LSSharedFileListItemRef loginItemRef =
LSSharedFileListInsertItemURL(loginListRef,
kLSSharedFileListItemLast,
NULL,
NULL,
(CFURLRef)url, // url is my app location
NULL,
NULL);
if (loginItemRef) {
CFRelease(loginItemRef);
}
CFRelease(loginListRef);
}*
Advance Thanks
-Parimal Das
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--
--
Warm Regards,
Parimal Das
Webyog Softworks
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